Secular Variation in the Property of Daily Rainfall at Kyoto Basin

Takeshita, Shinichi; Mitsuno, Toru

doi:10.3178/jjshwr.18.106

Cited by 5 publications

(4 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For that purpose it is important to determine trends in the changes in rainfall characteristics, just as several instances of research on change in rainfall characteristics have pointed out increased probable rainfall (Chikamori and Nagai 2002;Takeshita and Mitsuno 2005). There are concerns that changes in rainfall characteristics will have direct impacts on the environmental conditions for agricultural production, and especially great impacts in regions that depend on rainfed agriculture.…”

Section: Introductionmentioning

confidence: 98%

Changes in daily rainfall characteristics in major rice producing provinces in Laos

Suzuki

Sato

Yamamoto

et al. 2008

Paddy Water Environ

View full text Add to dashboard Cite

In order to find the changes in rainfall characteristics and to examine the flood damage to lowland rice, a statistical analysis was carried out on the 40-year daily rainfall record at four rainfall stations (Thangon, Paksane, Seno, and Pakse) in Laos. The rainfall record was divided into two periods of 20 years each. The results of this analysis revealed the trends in changes regarding the frequency and the timing of the heavy daily rainfall events at the four stations. In Paksane in particular, heavy daily rainfall events tended to occur in the latter half of the rainy season.

show abstract

Section: Introductionmentioning

confidence: 98%

Changes in daily rainfall characteristics in major rice producing provinces in Laos

Suzuki

Sato

Yamamoto

et al. 2008

Paddy Water Environ

View full text Add to dashboard Cite

show abstract

“…Rainfall characteristics in mountainous areas are often different from lowland areas (Dairaku et al , ; Shinohara et al , ; Qin et al , ). Takeshita and Mitsuno () and Shinohara et al () reported different long‐term trends in rainfall characteristics for rainfall stations within just 10 km of each other. These studies suggest that extrapolation of rainfall characteristics in mountainous areas from the results of Yeh and Chen () and Hsu and Chen () could be invalid and that spatial and temporal variations in rainfall and their long‐term trends are still unclear, especially in mountainous areas.…”

Section: Introductionmentioning

confidence: 99%

Spatial and temporal variations in rainfall characteristics in mountainous and lowland areas in Taiwan

Kao

Kume

Komatsu

et al. 2012

Hydrological Processes

View full text Add to dashboard Cite

Although changes in rainfall characteristics have been noted across the world, few studies have reported those in mountainous areas. This study was undertaken to clarify spatial and temporal variations in rainfall characteristics such as annual rainfall amount (Pr), mean daily rainfall intensity (η), and ratio of rain days (λ) in mountainous and lowland areas in Taiwan. To this aim, we examined spatial and year‐to‐year variations and marginal long‐term trends in Pr, η, and λ, based on rainfall data from 120 stations during the period 1978–2008. The period mean rainfall (truePr—) at the lowland stations had strong relationships with the period mean daily rainfall intensity (trueη¯) and the period mean ratio of rain days (trueλ¯) during those 31 years. Meanwhile, truePr— was only strongly related to trueη¯ at mountainous stations, indicating that influences on spatial variations in truePr— were different between lowland and mountainous stations. Year‐to‐year variations in Pr at each station were primarily determined from the variation in η at most stations for both lowland and mountainous stations. Long‐term trend analysis showed that Pr and η increased significantly at 10% and 31% of the total 120 stations, respectively, and λ decreased significantly at 6% of the total. The increases in Pr were mostly accompanied by increases in η. Although stations with significant η increases were slightly biased toward the western lowland area, increases or decreases in Pr and λ were not common. These results contribute to understanding the impacts of possible climate changes on terrestrial hydrological cycles. Copyright © 2012 John Wiley & Sons, Ltd.

show abstract

“…Kuraji et al, 2001;Dairaku et al, 2004). Furthermore, Kondo and Watanabe (1991) and Komatsu et al (2008a) reported that the spatial variation in precipitation amounts is extremely large and Takeshita and Mitsuno (2005) reported that different trends in precipitation characteristics among three stations located within 6 km of each other. These findings imply that extrapolating precipitation characteristics in mountain areas from those at low elevation might be invalid.…”

Section: Introductionmentioning

confidence: 99%

“…Kondo and Watanabe (1991) and Komatsu et al (2008a) reported a large spatial variation in precipitation amounts compared with variations in other meteorological elements such as air temperature and solar radiation. Takeshita and Mitsuno (2005) reported different trends in precipitation characteristics among three stations located within 6 km of each other. Therefore, although significant trends in precipitation characteristics in mountain areas would not be common, significant long-term trends in the precipitation amount and characteristics exist for some specific regions.…”

Section: Temporal Variationmentioning

confidence: 99%

Spatial and temporal variations in summer precipitation in Japanese mountain areas

Shinohara¹,

Kume²,

Komatsu³

et al. 2010

Hydrological Processes

View full text Add to dashboard Cite

Abstract:We examined spatial and temporal variations in precipitation measured during summer season between 1976 and 2007 for 28 stations located in mountain areas across Japan using the amount of precipitation (Pr), the mean depth of precipitation events (Á), and the inverse of the mean interval times ( ). We obtained positive correlations between the period mean Pr (Pr) and the period mean Á (Á) and between Pr and the period mean ( ) for the 28 stations. Pr was more strongly related to Á than to , indicating the spatial variations in Pr that are primarily related to the variations in Á. In addition, Pr was more strongly related to Á than to for most stations on the basis of data for 1976-2007, indicating that the year-to-year variations in Pr are primarily related to Á. We also examined temporal trends in Pr, Á and for 1976-2007 and found no systematic trends for 23 of the 28 stations, suggesting long-term trends that are not common in mountain areas of Japan. The relationships between Pr and Á and between Pr and Á presented in this study enable us to generate a temporal precipitation distribution pattern based on only Pr and Pr data, respectively. Furthermore, probabilistic stochastic hydrological models require precipitation characteristics as input; thus, this study contributes to the determination of hydrological cycles and their possible future changes in Japanese mountain areas and therefore to water resource management.

show abstract

Secular Variation in the Property of Daily Rainfall at Kyoto Basin

Cited by 5 publications

References 13 publications

Changes in daily rainfall characteristics in major rice producing provinces in Laos

Changes in daily rainfall characteristics in major rice producing provinces in Laos

Spatial and temporal variations in rainfall characteristics in mountainous and lowland areas in Taiwan

Spatial and temporal variations in summer precipitation in Japanese mountain areas

Contact Info

Product

Resources

About